A Utility-based Throughput Maximization (UTM) Scheduling Scheme for Downlink MIMO-OFDMA Systems

Chung-Ju Chang, Chih-Ming Yen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this paper, a utility-based throughput maximization (UTM) scheduling scheme is proposed for downlink multiuser MIMO-OFDMA systems. The UTM scheme allocates subchannels, receiving antenna, and modulation order to multimedia users with goals to maximize throughput and guarantee QoS requirements. Based on the channel quality and the QoS requirements of each user, we formulate the scheduling into an optimization problem subject to system constraints and propose a heuristic TM algorithm to solve the optimization problem. Simulation results show that the UTM scheme achieves system throughput higher than conventional schemes such as ARRA [8] and CDPS 171 schemes by about 8% and 21% at traffic intensity 0.75, respectively. Moreover, the UTM scheme has better QoS satisfaction ratio than the ARRA and CDPS schemes.
Original languageEnglish
Title of host publication2009 IEEE 70TH VEHICULAR TECHNOLOGY CONFERENCE FALL, VOLS 1-4
PublisherIEEE
Pages1626-1630
Number of pages5
ISBN (Print)978-1-4244-2514-3
StatePublished - 2009
Event2009 IEEE 70th Vehicular Technology Conference Fall, VTC 2009 Fall - Anchorage, AK, United States
Duration: 20 Sep 200923 Sep 2009

Publication series

NameIEEE Vehicular Technology Conference Proceedings
PublisherIEEE
ISSN (Print)1550-2252

Conference

Conference2009 IEEE 70th Vehicular Technology Conference Fall, VTC 2009 Fall
CountryUnited States
CityAnchorage, AK
Period20/09/0923/09/09

Keywords

  • ADAPTIVE SUBCARRIER; MULTIUSER OFDM; ALLOCATION; BIT

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